CVE-2024-5193 Ritlabs TinyWeb Server Request crlf injection
Remote attackers can inject CRLF sequences into HTTP requests in Ritlabs TinyWeb Server, potentially manipulating response headers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-5193?
CVE-2024-5193 is a medium-severity vulnerability in Ritlabs TinyWeb Server, published on 22 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A security vulnerability has been detected in Ritlabs TinyWeb Server 1.94. This vulnerability affects unknown code of the component Request Handler. The manipulation with the input %0D%0A leads to crlf injection. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 1.99 is able to resolve this issue. The identifier of the patch is d49c3da6a97e950975b18626878f3ee1f082358e. It is suggested to upgrade the affected component. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2024-5193?
It affects 1 product.
Products include Ritlabs Tinyweb.
How do I fix CVE-2024-5193?
No fix has been published for CVE-2024-5193 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-5193 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-5193 exists.
Other vulnerabilities in Ritlabs TinyWeb Server
- CVE-2026-27613 CGI Parameter Injection (Bypass of STRICT_CGI_PARAMS and EscapeShellParam)
- CVE-2026-22781 TinyWeb CGI Command Injection
- CVE-2026-28497 TinyWeb: Integer Overflow in `_Val` (HTTP Request Smuggling)
- CVE-2026-29046 TinyWeb: HTTP Header Control Character Injection into CGI Environment
- CVE-2026-27630 TinyWeb vulnerable to Remote Denial of Service via Thread/Connection Exhaustion (Slowloris)
Sources
Also known as GHSA-f49h-4f4j-3rjc.